Device with rotary pistons that can be used as a compressor, a pump, a vacuum pump, a turbine, a motor and as other driving and driven hydraulic-pneumatic machines

ABSTRACT

Device with rotary pistons that can be used as a compressor, a pump, a vacuum pump, a turbine, a motor and as other driving and driven hydraulic pneumatic machines, according to the invention, is used in several embodiments so as to enable its use with all hydraulic pneumatic machines and engines, by fitting constructional assemblies with gears and rotary pistons. 
     Generally, depending on the type of construction, it consists of a piston housing ( 11 ) or piston housing ( 11   a ) with inlet-outlet connections ( 20 ), a gear housing ( 9 ), a separating wall ( 7 ) or separating wall ( 7   a ), front cover ( 12 ) and a rear cover ( 1 ) connected to each other by bolts screwed in the body of the rear cover ( 1 ) or in the body of the piston housings ( 11  or  11   a ) wherein set are working-auxiliary rotary pistons that consist of a body ( 6 ) of a cylindrical circular shape with one or more working protrusions (A, B, C, D, E or F) and one or more auxiliary recesses (G or H) arranged at the angles, depending on the type of device, that are over shafts ( 4,5 ) firmly connected with gears ( 10 ) or gears ( 10   a ) set in the gear housing ( 9 ) where the piston housing ( 11  or  11   a ) and the gear housing ( 9 ) are separated by separating wall ( 7  or  7   a ) with the holes for the shafts ( 4,5 ) embedded in the front cover ( 12 ) and the separating wall ( 7 ) or only in the separating wall ( 7 ) or in the covers ( 12,1 ).

TECHNICAL FIELD OF THE INVENTION

Invention refers to the devices with rotary piston (or pistons) that can be used wherever there is a need to make vacuum, for compression of compressible fluids, for pumping fluids, to create pressure (high and extremely high pressures) e.g.: vacuum pumps, compressors, pumps, then as driving or driven hydraulic pneumatic machines, as devices having a characteristic to convert energy of some fluid into a mechanical power and vice versa such as turbines, motors, internal combustion engines, etc.

Generally speaking invention belongs to the following fields: engines, turbines, drives, pumps, and more precisely: machines or engines, turbines, motors, pumps, with rotary piston, according to the International Patent Classification (IPC)(2007.01) the subject of invention belongs to i.e. is classed and assigned by classification symbols and some of these symbols are: F01C 1/00, F02B 55/00, F03C 2/00, F04C 2/00, F04C 11/00, F04C 18/00, F04C 23/00.

TECHNICAL PROBLEM

Technical problem solved by herewith explained invention consists in the following: how to solve the construction of a device with rotary piston (pistons) in several embodiments so as to enable its use wherever needed: to make vacuum, for compression of compressible fluids, for pumping fluids, to create pressure—high and extremely high: vacuum apparatuses, compressors, pumps, then for driving and driven hydraulic pneumatic machines; motors that have a characteristic to convert the energy of some fluid into mechanical power and vice versa (turbines, motors, . . . ).

Application of structural assemblies with to each other engaged gears and rotary pistons of different profiles gives as a result a uniform economically satisfactory construction with a high rate of utilization and a long working life, by means of which are significantly reduced; friction, noise, and a maximal torque and resistance to very high working pressures are achieved.

State-of-Art of Invention

Generally known are different structures of driving and driven machines where the main disadvantage is an expensive and complex manufacturing, and heaviness. With the majority of existing constructions the main problem is the expensive manufacture, the need for regular lubrication due to a high friction coefficient thus leading to relatively complex systems for lybrication, and have a low-rate exploitation of utilization of energy of fluids, e.g. compressors (standard piston compressors) manufacturing of which is very complex, relatively expensive and very noisy, then; pumps with many (2, . . . , 10, . . . and more) working circuits are used to achieve high pressure making them too heavy, expensive, it is similar with high-pressure pumps of 100 . . . 200 Bars expensive and complex; steam turbines the activation of which requires the use of special motors; vacuum apparatuses with high rotation of working circuits and low rate of the achieved vacuum; internal combustion engines—very complex.

Searching patent documentation and technical papers in this field has revealed no similar solution of the set out technical problem.

Subject Matter of Invention

Rotary pistons in the housing, by its top and bottom flat surfaces, being in the contact line with the surfaces of separating wall i.e. cover, that close the piston housing and the pistons themselves (and can have a high clearance when used for fluids with impurities, ingredients); rotary pistons are over the shafts firmly connected to gears, set in the other housing (with a certain quantity of oil, being enough for lubrication) where each to other these are engaged; the driving gear with one or with several driven gears and the purpose of these is power transmission and synchronization of revolvment of rotary pistons; while revolving the rotary pistons slide by its tops (at the very line of touch) along the internal side of the housing of the pistons (and where clearances, when using fluids with impurities, these can have even higher clearances when used for fluids with impurities) creating therewith the underpressure (a certain vacuum rate) and in the front, carry out the thrust or are compressed (when used as a turbine or a motor, etc.); in the housing with pistons, some oil can be present there to improve sealing (and there can be even a constant flow of the appropriate quantity of cooled oil intended, amongst other, when needed to cool device) and to improve the efficacy of the device when used in the function of the vacuum pump or a compressor.

-   -   Rotary piston consists of a cylindrically shaped body with         protrusions on it (in it) of cylindrical-semicylindrical or         other shapes and recessions of cylindrical-semicylindrical or         other shapes.     -   Protrusions along the length of cylindrical-semicylindrical or         other shape on the body of the rotary piston, are in parallel to         the axis of the body of rotary piston, for facilitating         recognition of each shape, each one is distinctly marked by one         of the following alphabets and that; “A” “B” “C” “D” “E”         “F”.—“A” is a protrusion of a cylindrical-semicylindrical shape.     -   “B” is a protrusion shaped as an indented (along the length)         cylinder-semicylinder per both sides once.     -   “C” is a protrusion shaped as an indented (along the length)         cylinder-semicylinder once per both sides.     -   “D” is a protrusion shaped as an indented (along the length)         cylinder-semicylinder twice per both sides.     -   “E” is a protrusion shaped as an indented (along the length)         cylinder-semicylinder four times per both sides.     -   “F” is a protrusion shaped as a truncated cylinder-semicylinder.

Longitudinal recess/recesses of cylindrical-semicylindrical or other shape on the body of the rotary piston is/are in parallel with the axis of the body of the rotary piston and to make description clearer, each shape is marked with one of the following alphabets and that; “G” “H”.

-   -   “G” is a recess of a cylindrical-semicylindrical shape.     -   “H” is a recess shaped as a truncated cylinder-semicylinder,         adjusted to the shape of the working piston “F”

A protrusion or a recess as well as several protrusions and recesses (i.e. combination of protrusions or recesses) of any shapes (A,B,C,D,E,F,G,H) on the body of the rotary piston, are grouped to make an intelligible description, as the following;

-   -   Double-sided working auxiliary rotary piston—is a body of a         cylindrical-semicylindrical shape with a hole for the shaft in         the center or with an integrated shaft, which has on itself two         protrusions and two recesses arranged in alteration at the         angles of 90 DEG.     -   Double-sided working rotary piston—is a body of a cylindrical         semicylindrical shape with a hole for shaft in the centre or         with an integrated shaft, whereon two protrusions are arranged         at the angle of 180 DEG.     -   Double-sided auxiliary rotary piston—is a body of a         cylindrical-semicylindrical shape with a hole for the shaft in         the centre or with an integrated shaft, wherein are two recesses         arranged at the angle of 180 DEG.     -   Single-sided working rotary piston—is a body of a         cylindrical-semicylindrical shape with a hole for the shaft in         the centre or with an integrated shaft, whereon is one         protrusion.     -   Single-sided auxiliary rotary piston—is a body of a         cylindrical-semicylindrical shape with a hole for the shaft in         the centre or an integrated shaft, wherein is one recess.     -   Three-sided working rotary piston—is a body of a         cylindrical-semicylindrical shape whereon are three protrusions         arranged at the angles of 120 DEG.     -   Three-sided auxiliary rotary piston—is a body of a         cylindrical-semicylindrical shape with a hole for the shaft in         the centre or an integrated shaft, wherein are three recesses         arranged at the angles of 120 DEG.     -   Four-sided working rotary piston—is a body of a         cylindrical-semicylindrical shape with a hole for the shaft in         the centre, or an integrated shaft, whereon are four protrusions         arranged at the angles of 90 DEG.     -   Four-sided auxiliary rotary piston—is a body of a         cylindrical-semicylindrical shape with a hole for the shaft in         the centre or an integrated shaft, wherein are four recesses         arranged at the angles of 90 DEG.     -   Cylindrical-semicylindrical body of the rotary piston integrated         as one part with the shaft or with a hole in the centre matching         to the diameter of the shaft, can on itself have any of shaped         protrusions A,B,C,D,E or F, and shaped recesses of G or H shape,         one by one or combined with several protrusions and recesses as         represented and explained in FIGS. 138 to 141, then FIGS. 143 to         174 and in the devices from FIGS. 1 to 137.

Inside the housing of the pistons on the separating wall and the cover i.e. inside the elements that close the pistons from both sides, there are recesses—channels. And that, around the gaskets themselves (a hole for the shaft or a bearing), with a duct toward the inlet wherethrough fluid enters into the device). Channels i.e. grooves that can be of different dimensions, shapes, diameters and profiles, have to comply to the said device i.e. to the dimensions of the body of the piston accomodated in the given device. And that only so that it completely fulfills its purpose and therewith stability and efficiency of the said device are not reduced. This is done to unload; gaskets, holes for the shafts and the bearings (that are in the separating walls and covers) from the pressure of fluid in the device and it has a significant importance particularly with high and extremely high pressures.

Devices with rotary pistons are dimenzioned even so that there is a certain clearance between the pistons and internal surface of the piston chamber wherethrough the piston moves and also between the bodies of the rotary pistons itself. In such cases, efficiency of the device is reduced, to some extent, but the advantage of this solution is in that it enables the use of device with fluids which, therein, have only impurities (such as the sand is or some other impurity in the water or any other fluid with any other sort of impurity).

Invention can be used as a brake with a simultaneous closing (opening) of the drain and supply valve and therewith increases/decreases flow of fluids (and the most suitable are liquid fluids), and therewith the speed of rotating the shafts decreases (increases), or it is completely stopped at the moment of a complete closure of both valves. Herewith avoided is frictional braking with some braking systems. Herewith, with some braking systems, frictional braking is avoided.

Invention—device with rotary pistons can be used in internal combustion engines, primarily gas IC engines, whereby valves would be opened, at a certain position of pistons, at the input (connecting) sides of the piston housings and therewith mixture of air and fuel would be brought into a certain space of the piston chamber under a certain and for that function sufficient pressure and then immediately upon closing the valve, the spark plug would spark the mixture or in any other therefore appropriate, all this repeats during each revolving (cycle). Determination of the moment of the opening and closing the valve and the moment when the mixture is sparked would be electronically or mechanically carried out, or in any other thereto appropriate way.

Advantages of this invention are mainly in the facts; that herewith completely avoided are complex transformations of reciprocating motion into circular one and vice versa; that with devices having this type of a rotary pistons it is possible to obtain maximum torque; working process of these devices is uniform and efficiency is improved (higher percent of exploitation) as they have no idle run; that the noise is reduced; that shapes of rotary pistons, once or several times indented protrusions from one side or from both sides prevent the occurence of additional loading on the shafts during revolving, and particularly at high speeds; that auxiliary recesses on each to other engaged rotary pistons in their housing, during the working process, enable smooth transition of working protrusions from the zone of overpressure into the zone of underpressure, with no loss (i.e. with minor, irrelevant losses); that there is no direct contact among the pistons themselves nor with the housing, and therewith avoided is detrition (wearing out) and therewith prolonged is the working life; that the rotary piston (being important for the majority of their shapes and this is due to the function it carries out) is equally efficient whether revolving in one or in the other direction; that there is no need for complex systems for lubrication; that inside the piston housings at the separating wall and the cover i.e. elements that close the pistons from both sides, there are recesses, channels around the gaskets (holes for the shaft or around the bearings), so as to accomodate therein the quantity (the quantities being so small that, during the working process of the device, these would go through the separating wall—cover and the pistons) of fluid from the part of the piston housing wherein overpressure prevails and through the outlet it would be directed into the part of the piston housing wherein prevailing is underpressure (toward the inlet part) this is of significant importance particularly with high and extremely high pressures and for the purpose of protecting the gaskets and bearings and to prevent fluid from flowing into the adjacent housings or outside.

SHORT DESCRIPTION OF THE FIGURES OF DRAWING

Invention is described in details in the examples of embodiment represented in the drawings where:

FIG. 1—shows a lateral view at the assembly with a pair of the gears and a pair of engaged double-sided working auxiliary rotary pistons A-G,

FIG. 2—shows a top view at the assembly,

FIG. 3—shows a front view at the assembly,

FIG. 4—shows an isometric drawing of the assembly,

FIG. 5—shows a cross section D-D from FIG. 1,

FIG. 6—shows a cross section E-E from FIG. 1,

FIG. 7—shows a cross section F-F from FIG. 3,

FIG. 8—shows an isometric drawing of the cross section of the whole assembly as seen along the line of cross section F-F from FIG. 3.

FIG. 9—shows a disassembled assembly from FIG. 1-8,

FIG. 10—shows a lateral view at the assembly, as to the second embodiment, with one pair of gears and two pairs of double-sided working auxiliary rotary pistons E-G,

FIG. 11—shows a top view at the assembly,

FIG. 12—shows a front view at the assembly,

FIG. 13—shows an isometric drawing of the assembly,

FIG. 14—shows a cross section A-A from FIG. 12,

FIG. 15—shows an isometric drawing of the cross section of the whole assembly along the line of cross section A-A from FIG. 12,

FIG. 16—shows a cross section B-B from FIG. 10,

FIG. 17—shows a cross section C-C from FIG. 10,

FIG. 18—shows a cross section D-D from FIG. 10,

FIG. 19—shows the assembly from FIG. 10-18 disassembled,

FIG. 20—shows a lateral view at the assembly, as to the third embodiment, with one pair of gears and two pairs of double-side working auxiliary rotary pistons E-G,

FIG. 21—shows a top view at the assembly,

FIG. 22—shows a front view at the assembly,

FIG. 23—shows an isometric drawing of the assembly,

FIG. 24—shows a cross section A-A from FIG. 22,

FIG. 25—shows an isometric drawing of the whole assembly along the line of cross section A-A from FIG. 22,

FIG. 26—shows a cross section B-B from FIG. 20,

FIG. 27—shows a cross section C-C from FIG. 20,

FIG. 28—shows a cross section D-D from FIG. 20,

FIG. 29—shows a disassembled assembly from FIGS. 20-28,

FIG. 30—shows a lateral view at the assembly, as to the fourth embodiment, with one pair of gears and one pair of double-sided working auxiliary rotary pistons E-G,

FIG. 31—shows a top view at the assembly,

FIG. 32—shows a front view at the assembly,

FIG. 33—shows an isometric view of the assembly,

FIG. 34—shows a cross section A-A from FIG. 31,

FIG. 35—shows a cross section B-B from FIG. 30,

FIG. 36—shows a cross section C-C from FIG. 30,

FIG. 37—shows a cross section D-D from FIG. 30,

FIG. 38—shows the assembly from FIGS. 30-37 disassembled,

FIG. 39—shows a lateral view at the assembly, as to the fifth embodiment, with one pair of gears and a pair of double-sided working auxiliary rotary pistons C-G,

FIG. 40—shows a front view at the assembly,

FIG. 41—shows a top view at the assembly,

FIG. 42—shows an isometric view at the assembly,

FIG. 43—shows a cross section A-A from FIG. 39,

FIG. 44—shows an isometric drawing of the cross section of the whole assembly along the line of cross section A-A from FIG. 39,

FIG. 45—shows a cross section B-B from FIG. 39,

FIG. 46—shows a cross section C-C from FIG. 39

FIG. 47—shows the assembly from FIGS. 39-46 disassembled,

FIG. 48—shows a lateral view at the assembly, as to the sixth embodiment, with one pair of gears and one pair of double-sided working auxiliary rotary pistons A-G,

FIG. 49—shows a top view at the assembly,

FIG. 50—shows a front view at the assembly,

FIG. 51—shows an isometric drawing of the assembly,

FIG. 52—shows a cross section A-A from FIG. 49,

FIG. 53—shows an isometric drawing of the cross section of the whole assembly along the line of cross section A-A from FIG. 49,

FIG. 54—shows a cross section B-B from FIG. 48,

FIG. 55—shows a cross section C-C from FIG. 48,

FIG. 56—shows a disassembled assembly from FIG. 48-55,

FIG. 57—represents a front view at the assembly, as to the seventh embodiment, with one pair of gears and one pair of double-sided working auxiliary rotary pistons A-G,

FIG. 58—shows a top view at the assembly,

FIG. 59—shows a lateral view at the assembly,

FIG. 60—shows an isometric drawing of the assembly,

FIG. 61—shows a cross section A-A from FIG. 59,

FIG. 62—shows an isometric drawing of the cross section of the whole assembly along the line of cross section A-A from FIG. 59,

FIG. 63—shows a cross section B-B from FIG. 58,

FIG. 64—shows a cross section C-C from FIG. 58,

FIG. 65—shows a view of disassembled assembly from FIG. 57-64,

FIG. 66—shows a top view of the assembly, as to the eighth embodiment, with five gears and two pairs of double-sided working auxiliary rotary pistons C-G

FIG. 67—shows a front view at the assembly,

FIG. 68—shows a lateral view at the assembly,

FIG. 69—shows an isometric drawing of the assembly,

FIG. 70—shows a cross section A-A from FIG. 68,

FIG. 71—shows a cross section B-B from FIG. 66,

FIG. 72—shows a cross section C-C from FIG. 66,

FIG. 73—shows the assembly from FIG. 66-72 disassembled,

FIG. 74—shows a top view of the assembly, as to the ninth embodiment, with one pair of gears, one double-sided working rotary piston A and one double-sided auxiliary rotary piston G,

FIG. 75—shows a lateral view at the assembly,

FIG. 76—shows a front view at the assembly,

FIG. 77—shows an isometric drawing of the assembly,

FIG. 78—shows a cross section A-A from FIG. 75,

FIG. 79—shows a cross section B-B from FIG. 74,

FIG. 80—shows a cross section C-C from FIG. 74,

FIG. 81—shows an isometric drawing of the cross section of the whole assembly along the line of cross section A-A from FIG. 75,

FIG. 82—shows the assembly from FIG. 74-81 disassembled,

FIG. 83—shows a top view of the assembly, according to the tenth embodiment, with one pair of gears and one pair of double-sided working auxiliary rotary pistons A-G,

FIG. 84—shows a front view at the assembly,

FIG. 85—shows a lateral view at the assembly,

FIG. 86—shows an isometric drawing of the assembly,

FIG. 87—shows a cross section A-A from FIG. 85,

FIG. 88—shows an isometric drawing of the whole assembly along the line of cross section A-A from FIG. 85,

FIG. 89—shows a cross section B-B from FIG. 83,

FIG. 90—shows a cross section C-C from FIG. 83,

FIG. 91—shows the assembly from FIG. 83-90 disassembled,

FIG. 92—shows a top view at the assembly, as to the eleventh embodiment, with one pair of gears and one pair of double-sided working auxiliary rotary pistons F-H,

FIG. 93—shows a lateral view at the assembly,

FIG. 94—shows a front view at the assembly,

FIG. 95—shows an isometric drawing of the assembly,

FIG. 96—shows a cross section A-A from FIG. 93,

FIG. 97—shows an isometric drawing of the cross section of the whole assembly through the section A-A from FIG. 93,

FIG. 98—shows a cross section B-B from FIG. 92,

FIG. 99—shows a cross section C-C from FIG. 92,

FIG. 100—shows the assembly from FIG. 92-99 disassembled,

FIG. 101—shows a top view of the assembly, as to the twelfth embodiment, with three gears, one double-sided auxiliary rotary piston G and two double-sided working auxiliary rotary pistons A,

FIG. 102—shows a lateral view at the assembly,

FIG. 103—shows an isometric drawing of the assembly,

FIG. 104—shows a cross section D-D from FIG. 102,

FIG. 105—shows an isometric drawing of the assembly

FIG. 106—shows a cross section B-B from FIG. 101,

FIG. 107—shows a cross section C-C from FIG. 101,

FIG. 108—shows a lateral view at the assembly, as to the thirteenth embodiment, with four gears, one double-sided auxiliary rotary piston G and three double-sided working rotary pistons A,

FIG. 109—shows a front view at the assembly,

FIG. 110—shows a top view at the assembly,

FIG. 111—shows an isometric drawing of the assembly,

FIG. 112—shows a cross section D-D from FIG. 108,

FIG. 113—shows a cross section E-E from FIG. 108,

FIG. 114—shows a cross section F-F from FIG. 108,

FIG. 115—shows a view at disassembled assembly from FIGS. 108-114,

FIG. 116—shows a top view of the assembly, according to the fourteenth embodiment, with five gears, four double-sided working rotary pistons A and one double-sided auxiliary rotary piston G,

FIG. 117—shows a front view at the assembly,

FIG. 118—shows an isometric drawing of the assembly,

FIG. 119—shows a cross section A-A from FIG. 116,

FIG. 120—shows an isometric drawing of the whole assembly along the line of cross section A-A from FIG. 116,

FIG. 121—shows a cross section B-B from FIG. 116,

FIG. 122—shows a cross section C-C from FIG. 116,

FIG. 123—shows a view at disassembled assembly from FIG. 116-122,

FIG. 124—shows a top view of the assembly, as to the fifteenth embodiment, with seven gears, six double-sided working rotary pistons A and one hexagonal auxiliary rotary piston G,

FIG. 125—shows a cross section H-H from FIG. 124,

FIG. 126—shows a cross section G-G from FIG. 124,

FIG. 127—shows a cross section K-K from FIG. 124,

FIG. 128—shows isometric drawing of the assembly,

FIG. 129—shows a top view of the assembly, as to the sixteenth embodiment, with one pair of gears, one single-sided working rotary piston A and one single-sided auxiliary rotary piston G,

FIG. 130—shows a front view at the assembly,

FIG. 131—shows a lateral view at the assembly,

FIG. 132—shows an isometric drawing of the assembly,

FIG. 133—shows a section A-A from FIG. 131,

FIG. 134—shows an isometric drawing of the whole assembly along the line of cross section A-A from FIG. 131,

FIG. 135—shows a section B-B from FIG. 129,

FIG. 136—shows a section C-C from FIG. 129,

FIG. 137—shows a disassembled assembly from FIG. 129-136,

FIG. 138—shows embodiment of the body 6 with working protrusions A and one auxiliary recesses G,

FIG. 139—shows embodiment of the body 6 with working protrusions B and auxiliary recesses G,

FIG. 140—represents embodiment of the body 6 with working protrusions D and auxiliary recesses G,

FIG. 141—represents embodiment of the body 6 with working protrusions F and auxiliary recesses H,

FIG. 142—represents cross section of the piston housings with a pair of double-sided working-auxiliary pistons A-G where the flow of fluid through the housing during the operation of the device is indicated,

FIG. 143—shows a front view at two double-sided working-auxiliary rotary pistons A-G, L—indicates the length of the pistons (all the pistons both working and auxiliary ones) in all the devices in Figures from 1 to 174.

FIG. 144—shows a top view at two double-sided working-auxiliary rotary pistons A-G,

FIG. 145—shows a lateral view at two double-sided working-auxiliary rotary pistons A-G,

FIG. 146—shows an isometric drawing of two double-sided working-auxiliary rotary pistons A-G,

FIG. 147—shows front view at two double-sided working-auxiliary rotary pistons B-G,

FIG. 148—shows top view at two double-sided working-auxiliary rotary pistons B-G,

FIG. 149—shows a lateral view at two double-sided working-auxiliary rotary pistons B-G,

FIG. 150—shows an isometric illustration of two double-sided working-auxiliary rotary pistons B-G,

FIG. 151—shows a front view at two double-sided working-auxiliary rotary pistons D-G,

FIG. 152—shows a top view at two double-sided working-auxiliary rotary pistons D-G,

FIG. 153—shows a lateral view at two double-sided working-auxiliary rotary pistons D-G,

FIG. 154—shows an isometric drawing of two double-sided working-auxiliary rotary pistons D-G,

FIG. 155—shows a front view at two double-sided working-auxiliary rotary pistons F-H,

FIG. 156—shows a top view at two double-sided working-auxiliary rotary pistons F-H,

FIG. 157—shows a lateral view at two double-sided working-auxiliary rotary pistons F-H,

FIG. 158—shows an isometric drawing of two double-sided working-auxiliary rotary pistons F-H,

FIG. 159—shows a front view at a double-sided working rotary piston A and a double-sided auxiliary working rotary piston G,

FIG. 160—shows a top view at a double-sided working rotary piston A and a double-sided auxiliary rotary piston G,

FIG. 161—shows a lateral view at a double-sided working rotary piston A and a double-sided auxiliary rotary piston G,

FIG. 162—shows an isometric drawing of a double-sided working rotary piston A and a double-sided auxiliary rotary piston G,

FIG. 163—shows front view at a single-sided working rotary piston A and single-sided auxiliary rotary piston G,

FIG. 164—shows a top view at a single-sided working rotary piston A and a single-sided auxiliary rotary piston G,

FIG. 165—shows a lateral view at a single-sided working rotary piston A and a single-sided auxiliary rotary piston G,

FIG. 166—shows an isometric drawing of a single-sided working rotary piston A and a single-sided auxiliary rotary piston G,

FIG. 167—shows a front view at a four-sided working rotary piston A and a four sided auxiliary rotary piston G,

FIG. 168—shows a top view at a four-sided working rotary piston A and a four-sided auxiliary rotary piston G,

FIG. 169—shows a lateral view at a four-sided working rotary piston A and a four-sided auxiliary rotary piston G,

FIG. 170—shows an isometric drawing of the four-sided working rotary piston A and a four-sided auxiliary rotary piston G,

FIG. 171—shows a front view at a three-sided working rotary piston A and a three-sided auxiliary rotary piston G,

FIG. 172—shows a top view at a three-side working rotary piston A and a three-sided auxiliary rotary piston G,

FIG. 173—shows a lateral view at a three-sided working rotary piston A and a three sided auxiliary piston G, and

FIG. 174—shows an isometric drawing of a three-sided working rotary piston A and a three sided auxiliary rotary piston G.

DETAILED DESCRIPTION OF INVENTION

Rotary piston has a body 6 of a cylindrical-semicyllindrical shape, integrated with a shaft or with a hole in the centre that fits in the diameter of the shaft, with any (working) protrusion (A,B,C,D,E,F) or auxiliary recess (G,H) individually or combined with several protrusions and recesses as illustrated and explained in FIGS. 138 to 174 and in the devices from FIG. 1 to 137.

Working longitudinal protrusion and/or protrusions is of a cylindrical-semicylindrical or other shape on the body 6 of the rotary piston, in parallel with an axis of the body 6 of the rotary piston, for easier identification of the shapes, each shape is separately marked with one of the following alphabets; “A” “B” “C” “D” “E” “F”.

Auxiliary longitudinal recess/recesses is a cylindrical-semicylindrical shape on the body 6 of the rotary piston, in parallel with an axis of the body 6 of the rotary piston, for facilitating the recognition, each shape is separately marked with one of the following alphabets such as; “G” “H”

-   -   (A) is a protrusion of a cylindrical-semicylindrical shape         having a radius r i.e. a height v, in the devices according to         the variants of embodiment: 1,4,6,7,9,10,12,13,14,15,16 and         according to the figures from 138 to 141, then 142 to 146, 159         to 174,     -   (B) is a protrusion, with a radius r, shaped as an indented         (along the length) cylinder-semicylinder, with a radius R2 by a         height v2, once from one side, FIG. 139, and from 147 to 150     -   (C) is a protrusion, of a radius r, shaped as an indented (along         the length) cylinder-semicylinder, with a radius R2 by a height         v2, once per both sides in the devices according to the ways of         embodiments: 5 and 8 in FIGS. 39 to 47 and 66 to 73,     -   (D) is a protrusion, of a radius r, shaped as an indented (along         the length) cylinder-semicylinder, with radii R2 and R3 by the         heights v2 and v3, from both sides twice, as to the FIG. 140 and         from 151 to 154,     -   (E) is a protrusion, with a radius r, shaped as indented (along         the length) cylinder-semicylinder, four times per both sides         similar to the above shape “D”, except for being divided into         four radii (R2,R3,R4 and R5) and four heights (v2,v3,v4 and v5),         in the devices according to the embodiments: 2 and 3 in FIGS. 10         to 29,     -   (F) is a protrusion, of a radius r, in the shape of a truncated         cylinder-semicylinder with a radius Rf by a height v, in FIG.         141, then in the device as to the eleventh embodiment in FIGS.         92 to 100,     -   (G) is a recess in the shape of a cylinder-semicylinder, with a         radius r, height v1 in the devices as to the embodiments:         1,2,3,4,5,6,7,9,10,12,13,14,15,16 and figures from 138 to 140,         and then 142 to 154, 159 to 174,     -   (H) is a recess, having a radius r1, shaped as a truncated         cylinder-semicylinder where the length of a radius Rh extends,         by a height v1—adjusted to the shape of the protrusion (F).

Rotary pistons are protrusions (A,B,C,D,E,F) and recesses (G,H) and also more protrusions and recesses (or by combination of any of the shapes) in the body 6, for the sake of clearer description, these are identified i.e. grouped as the following;

-   -   Double-sided working-auxiliary rotary piston has: a body 6 of a         cylindrical-semicylindrical shape with a hole for the shaft in         the centre, or it is integrated with a shaft, that has on itself         two (working) protrusions (A,B,C,D,E, or F) and two (auxiliary)         recesses of the shape (G or H) arranged in alteration by the         angles of 90 DEG.     -   Double-sided working rotary piston has a body 6 of a         cylindrical-semicylindrical shape with a hole for the shaft in         the centre or integrated as one part with the shaft, whereon are         two (working) shaped protrusions (A,B,C,D,E or F), arranged at         the angle of 180 DEG.     -   Double-sided auxiliary rotary piston has a body 6 of a         cylindrical-semicylindrical shape with a hole for the shaft in         the centre or integrated as one part with the shaft, wherein are         two (auxiliary) shaped recesses (G or H), arranged at the angle         of 180 DEG.     -   Single-sided working rotary piston has a body 6 of a         cylindrical-semicylindrical shape with a hole for the shaft in         the centre or integrated as one part with the shaft, whereon is         one (working) shaped protrusion (A,B,C,D,E or F).     -   Single-sided auxiliary rotary piston has a body 6 of a         cylindrical-semicylindrical shape with a hole for the shaft in         the centre or integrated as one part with the shaft, wherein is         one (auxiliary) shaped recess (G or H).     -   Three-sided working rotary piston has a body 6 of a         cylindrical-semicylindrical shape with a hole for the shaft in         the centre or integrated as one part with a shaft, whereon are         three (working) shaped protrusions (A,B,C,D,E, or F), arranged         at the angles of 120 DEG.     -   Three-sided auxiliary rotary piston has a body 6 of a         cylindrical-semicylindrical shape with a hole in the centre for         the shaft or integrated as one part with the shaft, wherein are         three (auxiliary) shaped recesses (G or H), arranged at the         angles of 120 DEG.     -   Four-sided working rotary piston has a body 6 of a         cylindrical-semicylindrical shape with a hole for the shaft in         the centre or integrated as one part with the shaft, whereon are         four (working) shaped protrusion (A,B,C,D,E, or F), arranged at         the angles of 90 DEG.     -   Four sided auxiliary rotary piston has a body 6 of a         cylindrical-semicylindrical shape with a hole for the shaft in         the centre or integrated as one part with the shaft, wherein are         four (auxiliary) recesses (G or H), arranged at the angles of 90         DEG.

According to the invention, rotary pistons are shaped to have various protrusions and recesses (represented in figures from 138 to 174 and in the devices from FIG. 1 to 137) and the choice among these depends on the purpose and the type of fluid that it will be used for.

In the following (outlined) four examples of the cross section the explanation for the embodiment of the four main shapes (of working) protrusions and two main shapes (of auxiliary) recesses together with the body is given, and according to these are achieved the shapes used in the devices represented in FIGS. 1 to 137 and FIGS. 142 to 174.

Body 6 having (working) protrusions A; (auxiliary) recesses G, represented in FIG. 138, are achieved so that the body 6 is of a circular cross section with a radius R and a central circular hole of radius R1 (when the body and the shaft are integrated as one part, R1 fits in the radius of the shaft). Along the longer axis are achieved two semicircular (working) protrusions A with a radius r and the height v and vertically on the shorter axis, there are two symmetrical semicircular (auxiliary) recesses G with a radius r1 and the height v1. All the mentioned parameters can be altered so as to comply these to the needs (technical characteristics) for which the device with the rotary pistons will be used.

Body 6 having (working) protrusions B; (auxiliary) recesses G, represented in FIG. 139, are achieved so that the body 6 is of a circular cross section with a radius R and with a central circular hole of a radius R1 (when the body and the shaft are integrally achieved, R1 fits in the radius of the shaft). Along the longer axis are achieved two semicircular, from one side indented, having a radius R2, by a height v2, (working) protrusions B having a radius r and the height v and vertically on the short axis two symmetrical semicircular (auxiliary) recesses G having a radius r1 and a height v1. All the mentioned parameters (physical properties) may be altered so as to comply to the requirements (technical characteristics) that the device with rotary pistons is to be used for.

Body 6 having (working) protrusions D; (auxiliary) recesses G, represented in FIG. 140, are achieved so that the body 6 of a circular cross section with a radius R, and a circular hole of a radius R1 in the centre, (the body and the shaft when achieved integrally, then R1 fits in the radius of the shaft). Along the long axis two semicircular, indented twice per both sides, with radii R2 and R3, by the heights v2 and v3, (working) protrusions D are achieved with a radius r and the height v and vertically to the short axis, two symmetrical semicircular (auxiliary) recesses G with a radius r1 and a height v1. All the mentioned parameters may be altered so as to make it compatible to the requirements (technical characteristics) that the device with rotary pistons is to be used for.

Body 6 having (working) protrusions F; (auxiliary) recesses H, represented in FIG. 141, are achieved so that the body 6 of a circular cross section with a radius R and a central circular opening of the radius R1 (when the body and the shaft are integrated as one part, then R1 and the radius of the shaft are matched). Along the longer axis, there are achieved two semicircular truncated, by a radius Rf at the height v, (working) protrusions F with a radius r and height v and vertically to the short axis there are two symmetrical truncated, by radius Rh at the height v1, (auxiliary) recesses H having radius r1 and height v1. All the mentioned parameters, can be altered to make them complied to the requirements (technical characteristics) that the device with rotary pistons is to be used for.

General explanation according to the invention, either in the case of an assembly comprising two or more gears engaged over the shaft with two or more bodies (with a working i.e. auxiliary recesses), on the way of functioning, being applicable for variant solutions, that would be as the following: bodies 6 with (working) protrusions A,B,C,D,E or F and auxiliary (recesses) G or H, said shortly rotary pistons in the piston housings 11-11 a, with its top and bottom flat surfaces are in the contact line with the inside surfaces of the separating walls 7-7 a and covers 1-1 a, that close the pistons (and can have even bigger clearance when used for fluids with impurities); bodies 6 are firmly connected (or integrated as one part with shafts) over the shafts 4-5-5 a with gears 10-10 a being set in the gear housing 9 (wherein there is a certain quantity of oil, the quantity is sufficient for lubrication) where engaged to each other are driving gears 10 a-10 with one or more driven gears 10 and are aimed to transmit power and align the revolvment of rotary pistons, where the piston housing 11-11 a and the gear housing 9 are separated by the separating wall 7-7 a whereon are holes for the shafts 4-5-5 a; revolving together with the body 6 (working) protrusions A,B,C,D,E, or F slide with its tips (along the contact line) along the internal side of the piston housing (and can have higher clearance when used for fluids with impurities) developing therewith the underpressure (a certain degree of vacuum) and in front these exert thrust or the thrust is exerted thereto (when used as a turbine or a motor, etc.); auxiliary recesses G and H are intended to enable smooth transition of (working) protrusions from the zone of overpressure to the zone of underpressure and at the same time to obstruct the flow of fluids from the zone of overpressure into the zone of underpressure: in the piston housing (11-11 a) there can be present even a certain quantity of oil that would enable more complete sealing and improved efficacy (there can be even a constant flow of the appropriate quantity of the cooled oil intended, among other things, for cooling the device provided that it is needed) when the device functions as a vacuum pump or a compressor; inlet-outlet holes 20 for piston housings 11 or at the rear cover 1 are either of different shapes or round with a thread, so that the installation connections can be screwed therein.

Firm connection between the body 6 of rotary pistons and shafts 4-5-5 a, or gears 10-10 a and shafts 4-5-5 a respectively can be achieved in any known and thereto appropriate way. These can be integrated in one part: body with the shaft 4-5-5 a or the gear 10-10 a with the shaft 4-5-5 a. Bearings 2 wherein embedded are the shafts in the assemblies, can be of various types and are chosen as to the dimensions and toughness or resistance against anticipated loadings and temperatures and as to the lubrication methods, and depending on the intended use of the device (ball bearings, roller bearings, needle bearings, sliding bearing and other bearings . . . )

Shafts 4-5-5 a of the device wherein are bodies 6 with pistons and gears 10-10 a, are embedded therein; the separating wall 7 in the centre of the device, and the rear cover 1-1 a that close the piston housing and the pistons themselves; then, embedded are in the separating wall 7 in the centre, and the front cover 12 that close the gear housing 9; embedded in the front cover 12 and the rear cover 1; embedded only in the separating wall 7 that separates the gear housing 9 from the piston housing 11. In some embodiments, when the device is integrated as one part with an engine (or a generator) there can be used an elongated shaft of the engine (or a generator), which is already embedded, carrying on itself one rotary piston and one gear per given device.

In all the assemblies, the gaskets 8 are chosen as to the type of fluid, then depending on their toughness to pressure and temperature (heat) that these are exposed to and can be of all types (suitable for desired assemblies).

Depending on the type of material, intended use and other functional characteristics of the device such as: speed of fluid flow, type of fluid, pressures of fluid (small-high or extremely high) and the heat that the fluids either have or develop during the working process, are important factors to determine: all the dimensions of the piston housings 11-11 a; all dimensions of the separating walls 7-7 a; all dimensions of rear covers 1-1 a; all dimensions of bodies 6; all dimensions and shapes of working protrusions (A,B,C,D,E,F) and auxiliary recesses (G,H); all types of shafts 4-5-5 a; all dimensions and types of gears (10,10 a) that can be of any, but for the given devices only the appropriate shape; and all the dimensions of type and number (for example on the assemblies for high pressures more screws are required and vice versa) above others, for the given assemblies of the chosen and fitting to each other elements complying with the set out requirements.

Elements of the assembly of the device; rear covers 1-1 a of the piston housings, front covers 12 of the gear housings, separating walls 7, gear housings 9, piston housings 11-11 a, each of these being achieved separately, or several elements achieved integrally such are; the rear cover 1 integrated with the piston housing 11-11 a; the front cover 12 integrated with the gear housing 9; the separating wall 7 integrally achieved with the gear housing 9; separating wall 7 integrally achieved with the piston housing 11, and this is important when making decision about the manufacturing process, when the choice of the most favorable one for the anticipated assemblies is being made.

Connecting all the parts to each other (housings, covers, separating walls), into the solid connection can be achieved in all the known and for the given assemblies appropriate ways.

Assemblies can consist elements (piston, housing, separating wall, cover . . . ) that are made, or of various types of materials (alloys) or combination of two or more types of material. Considering, e.g. that pistons are in a part or as entirely made of some type of rubber that (to a certain rate) compensates possible presence of some foreign bodies (rigid impurities) in the fluid during the working process.

Inside the piston housing 11-11 a, at the separating wall 7-7 a and the rear cover 1-1 a, i.e. elements that close the rotary pistons from both sides, are made channels 25 (see in the second and the third embodiments of the device) being achieved circularly around the gaskets 8 itself and around the hole for the shaft i.e. the bearing 2, with the protrusion toward the duct 20 that inlets fluid into the device, and can be of different dimensions, shapes, diameters and profiles correlated in the said device. This is done so that it completely fulfills its purpose and therewith it makes no damage to the stability and efficiency of the given device. It is recommended that in all devices recesses or channels are worked out. This is done to unload the protection of gaskets 8, holes for the shaft and bearings 2, that are in the separating walls and covers from the fluid pressure inside the device and this has significant importance particularly with high and extremely high pressures.

Device according to the invention, as represented in FIGS. 1 to 9, shows a device with a pair of gears and a pair of double-sided working-auxiliary rotary pistons A-G (double-sided working-auxiliary rotary piston A-G consists of a body 6 with a hole for the shaft, two (working) protrusions A and two (auxiliary) recesses G arranged in alteration at the angles of 90 DEG) and can be best used as a turbine, a compressor, a pump, a vacuum apparatus, a motor . . . , consisting of a piston housing 11 with inlet-outlet connections 20, a gear housing 9, a separating wall 7 a front cover 12 with a hole for shaft 4 and a rear cover 1, connected to each other by bolts 16 going through the appropriate holes 16 x and are screwed in the body of the rear cover 1, in the piston housing 11, there is set a pair of working-auxiliary rotary pistons A-G, firmly connected with gears 10, in the gear housing 9, over the shafts 4 and, where the piston housing 11 and the gear housing 9 are separated by the separating wall 7 whereon are holes for shafts 4 and 5 embedded in the front cover 12 and the separating wall 7 by bearings 2, the auxiliary guides 22 are grooved into the appropriate holes on the elements and are useful to direct precise alignment when connecting the elements of the assembly, the gaskets 8 in the separating wall 7 and the front cover 12 prevent fluid to flow from one housing into the other and outside. The external shape of the device can be round, elliptic . . . etc.; device can be used wherever there is a need; to create vacuum, to compress the compressible fluids, to pump fluids, to develop desired pressure and as a driving i.e. driven hydraulic-pneumatic machine; device can be used as a part of any type of engine (generator) or system; connected in an indirect connection such are cardan shafts, electromagnetic lamellas, pulleys and in all known and therefore appropriate modes. Device can be driven even manually (examples of pumps for decanting vine, water, fuel and etc.). Driving shafts of the device can have an outlet in the cover for the piston housings, and as well as through both covers. The inlet-outlet connections 20 can be on the piston housings 11 or on the rear cover 1 of that housing and as a combination of the inlet on the housing and the outlet on the cover and vice versa. When using the device for higher pressures it has to have channels 25 achieved (according to the second embodiment, as in FIGS. 10-19) to unload i.e. protect the gaskets and bearings from high-pressure fluid. Length L (thickness) of the pistons and the length of the housings can be altered (proportionally), i.e. increased or decreased. Sealing the contact surfaces between the elements of the assembly can be accomplished in all existing and thereto suitable modes. This device can be with (working) protrusions of any of the mentioned shapes; A; B; C; D; E or F and depending on these the choice ((of auxiliary) recesses))_among shapes G or H, is made.

Device according to the invention, as represented in FIGS. 10 to 19, represents a device with a pair of gears and two pairs of double-sided working-auxiliary rotary pistons E-G (double-sided working-auxiliary rotary piston E-G consists of a body 6 with a hole for the shaft, two (working) protrusions E and two (auxiliary) recesses G alterably arranged at the angles of 90 DEG) and can be best used as a pump, a compressor, it consists of the piston housing 11 integrated with the separating wall 7 and inlet-outlet connections 20, piston housing 11 a integrated with the rear cover 1 and inlet-outlet connections 20, gear housings 9 integrated as one part with the front cover 12 and the separating wall 7 a, connected to each other by bolts 16 and 18 that go through thereto matching holes 16 x and are screwed in the body of the piston housing 11 a, and in the piston housings 11 and 11 a there is set one pair of double-sided working-auxiliary rotary pistons E-G of various lengths (thickness), being over the shafts 4 and 5 firmly connected to the gears 10 in the gear housing 9; at the separating walls 7 and 7 a there are holes for shafts 4 and 5, at the front cover 12 and the rear cover 1 are holes for shafts 4, shafts 4 and 5 are embedded in the separating wall 7 and the rear cover 1, the auxiliary guides 22 grooved into the appropriate holes on the elements and are intended to direct precise alignment when connecting, the gaskets 8 are positioned in the separating walls 7 and 7 a then in the front cover 12 and the rear cover 1 prevent fluids to flow from one housing to the other and outside the device, prevent the contact between the working fluids and the bearings, recess 25 at the separating walls 7 and 7 a and also at the rear cover 1 are intended to unload i.e. protect the gaskets and bearings from high-pressure fluid, screws 15 close the openings for oil for lubricating the gears 10 in the gear housing 9, bolts 18 and nuts 17 are one of the modes by means of which the device is secured. Length-L (thickness) of the pistons of the device can increase or decrease thus leading to different lengths of the piston housings and its adjusting as to the lengths of the pistons. The external shape of the device can be round, elliptic . . . etc. Sealing of the contact surfaces between the elements of the assembly can be achieved in all so far known and thereto appropriate ways. This device can be with (working) protrusions of any mentioned shape; A; B; C; D; E or F and depending on it, the choice of the auxiliary pistons (recesses) among shapes G or H, is made. Device can be a part of any type of engines or systems; it can be directly driven by any type of motor; and it can be fitted therein or connected with motors by means of an indirect connection such are cardanshafts, electromagnetic lamellas, pulleys and in all other known and thereto appropriate ways. Inlet-outlet connections 20 for fluids into the piston housing can be on the piston housing or on the cover (or separating wall respectively) of the housing and it can be combined (inlet on the housing and outlet on the cover i.e. separating wall and vice versa) and can have a round or some other shape. It can be best used as a pump when there is a need for such a model and it can be in case of fruitgrocering sprinklers or drawing or carrying sprinklers, in such a case one working chamber would be used by sprinklers and the other one, at the same time, would be in the function of a mixer for the sprinkling composition or in some other embodiments one chamber would be used as a pump for the composition while the other would be used for compressing air (wherein the shape of the pistons would be A-G),

Device according to the invention, as represented in FIGS. 20 to 29, represents a device with a pair of gears and two pairs of double-sided working-auxiliary rotary pistons E-G (double-sided working auxiliary rotary piston E-G consists of a body 6 with a hole for the shaft, two (working) protrusions E and two (auxiliary) recesses G) and is best used as a combination of a fluid motor with a fluid pump or a vacuum pump, it consists of the piston housing 11 achieved in one part with the separating wall 7 and the inlet-outlet connections 20, then piston housing 11 a, integrally achieved with the front cover 12 and the separating wall 7 a being each to other coupled by bolts 16 and 18 that go through thereto matching holes 16 x and are screwed in the body of the piston housing 11 a, in both the piston housings 11 and 11 a separated from each other by the separating wall 7 a there is set a pair of double-sided working-auxiliary rotary pistons E-G of different lengths (thickness), being firmly connected with gears 10 in the gear housing 9, over the shafts 5; at the separating walls 7 i 7 a are holes for shafts 5 embedded by bearings 2 in the separating wall 7 and the rear cover 1, the auxiliary guides 22 are grooved in the appropriate holes on the elements and are used to direct precise alignment when connecting, the gaskets 8 set in the separating walls 7 and 7 a and also in the rear cover 1 prevent fluid to flow from one housing into the other and outside the device i.e. prevent working fluids to come in contact with bearings 2, recess 25 at the separating walls 7 and 7 a and at the rear cover 1 are aimed to unload i.e. protect the gaskets and bearings from high-pressure fluid, bolts 15 close the outlets for oil that lubricate the gears 10 in the gear housing 9, bolts 18 and nuts 17 are one of the modes to secure the device. Length-L (thickness) of the pistons of the devices can be higher or smaller implying therewith the changes in the length of the housing and adjusting it to the lengths of the pistons. The external shape of the device can be round, elliptic . . . etc. Sealing of the contact surfaces between the elements of the assembly can be done in all known and thereto appropriate modes. This device can be with (working) protrusions of any of the mentioned shapes; A; B; C; D; E or F and depending on these the choice of (auxiliary) recesses of the shape G or H, is made. Device can be separate or a part of any type of engines or systems. Inlet-outlet connections for inleting the fluid into the piston housing can be on the piston housing or on the cover of the housing and can be achieved as a combination of these two (inlet on the housing and the outlet on the cover and vice versa) and can be round or some other shapes. This device can be used wherever injectors or massive multistage pumps were used so far; it can be positioned in very deep wells above water surface therein and it can function as the following: e.g. the device (pump as to the first embodiment) is positioned on the surface of the ground and driven by some of the devices, is used for pumping water into the installation pipeline connected with the closed circular cycle with one part of the given device in the well, where that part of the device in this case would have the role of the hydromotor then, upon its going through it by using the other installation pipeline, water returns into the pump on the surface of the ground, while the other part of the device in the well pumps out the water from the well to the surface of the ground through a separate installation pipeline. In the second embodiment, an open cycle can be made so that a certain quantity of water (from the installation pipeline that is a part of the device pumps out water from the well into the surface of the ground) is enough for working process of a pump and a hydromotor, through the second installation pipeline by the pump on the surface of the ground pumps into the hydromotor (a part of the engine in the well) and when going out it would be discharged into the well. Device can be used in many cases, e.g.; by connecting the compressed fluid or a fluid under pressure in the part of the device that would be used as a fluid motor while the other would be a part of the device and would be used as a vacuum apparatus, pump or a compressor.

Device according to the invention, represented in FIGS. 30 to 38, represents a device with a pair of gears and two pairs of double-sided working auxiliary rotary pistons A-G (double-sided working auxiliary rotary piston A-G consists of one body 6 integrated as one part with the shaft and the other body 6 with a hole for the shaft, having per each two (working) protrudings A and per each two (auxiliary) recesses G) and is best used as a combination of a fluid motor with a pump (or vacuum pump). Consists of the piston housings 11 and 11 a with inlet outlet recesses 20 c and 20 a, covers 1 and 1 a with inlet outlet connections 20, gear housing 9 achieved integrally as one part with the separating wall 7, and the separating wall 7 a, being connected to each other by bolts 16 and 16 b that go through the appropriate holes 16 x and are screwed in the body of the piston housing 11 a, in both the piston housings 11 and 11 a there is one pair of double-sided working-auxiliary rotary pistons A-G of various lengths, and these are over the shafts 5 i 5 a firmly connected to the gears 10, in the separating walls 7 and 7 a and in the covers 1 and 1 a there are holes for the shafts 5 and 5 a embedded in the separating wall 7 and in the covers 1 and 1 a by bearings 2, the gaskets 8 set in the separating walls 7 and 7 a then in the covers 1 and 1 a prevent fluid to flow from one housing into the other i.e. prevent that working fluids come in touch with bearings, the auxiliary guides 22 are grooved into the appropriate hole on the elements and are used to direct precise alignment when connecting the bolts 15 are screwed into the holes 15 a, bolts 16 d go through thereto matching holes 16 dx on the cover 1 and the piston housing 11 and are screwed in the body of the separating wall 7, the bolts 16 c go through thereto matching holes 16 cx on the cover 1 a and are screwed in the body of the housing 11 a, bolts 16 a go through thereto matching holes 16 ax on the small covers 23 that cover the bearings 2 and are screwed in the body of the covers 1 and 1 a, ring washers 3 in the separating wall 7 a support the gaskets 8 leaning therewith onto the circlips 24, the ring washers 3 in the covers 1 and 1 a support the gaskets 8 leaning therewith against the bearings 2, the keys 29 are in the recesses on the shafts 5 and 5 a, sealing rings 28 are in the recesses 28 a, and the threaded openings 33 a for bolts for securing the device. Length-L (thickness) of rotary pistons can be longer or shorter implying therewith the change in the length of the housing and adjusting it to the length of the pistons (e.g. for very high pressures rotary pistons and the housings thereof should be shorter). Sealing of contact surfaces between the elements of the assembly can be achieved to all known and thereto appropriate modes. This device can be with (working) protrusions of any of the mentioned shapes; A; B; C; D; E or F and depending on it choice of the auxiliary (recesses) of the shape G or H, is done. The device can be separate or a part of any type of engines or systems. Inlet-outlet connections let the fluids into the piston housing can be on the piston housing or on the cover of that housing or achieved as a combination (inlet on the housing and the outlet on the cover and vice versa) and can be round (with a thread) and of other shapes. Wherever injectors were used so far or massive multi stage sinking pumps this, herewith explained device, can replace them; it can be set in deep wells above the surface of water or above the water level and function so that; the pump (taking e.g. device in the first embodiment) is set on the surface of the ground and it pumps into the installation pipeline connected to the closed circular cycle with one part of the given device (where such a part in this case would function as a hydromotor) hence upon going through it, water returns into the pump on the surface of the ground while the other part of the device pumps out the water from the well through the other installation pipeline on the surface of the ground. In the other variant of embodiment, and open cycle can also be made, when a certain quantity of water (from the installation pipeline that the part of the device pumps out from the well onto the surface of the ground) is enough for functioning the pump and the hydromotor while the other installation pipeline pumps into the hydromotor and when going out of it it is drained into the well. The device can be used in many other instances such as e.g.; by connecting the compressed fluid or fluid under pressure into the part of the device that would function as a fluid motor while the other part of the device would be used as a vacuum pump, compressor, pump, etc.

Device according to the invention, represented in FIGS. 39 to 47, is a device with a pair of gears and a pair of double-sided working-auxiliary rotary pistons C-G (double-sided working-auxiliary rotary piston C-G consists of a body 6 integrated as one part with a shaft, two (working) protrusions C and two (auxiliary) recesses G) and can be best used as a turbine, a pump, a motor . . . it consists of the piston housing 11 with ribbed reinforcement 14 and inlet-outlet connections 20, then the gear housing 9, separating wall 7, front cover 12 and the rear cover 1, connected to each other by bolts 16 and 16 a that go through the appropriate holes 16 x and are screwed in the body of the piston housing 11 wherein is set one pair of double-sided working auxiliary rotary pistons C-G, and these are firmly connected or coupled to gears 10 in the gear housing 9 over the shafts 4 and 5, where the piston housing 11 and the gear housing 9 are separated from each other by a separating wall 7 with holes for the shafts 4 and 5 embedded in the front cover 12 and the rear cover 1 and bearings 2, bolts 16 b go through thereto matching holes 16 bx on the small cover 23 and are screwed in the body of the rear cover 1, the gaskets 8 set in the separating wall 7, rear cover 1 and front cover 12 prevent the fluid to flow from one housing into the other, and also outside the device, circlips 24 support the gaskets 8 in the separating wall 7 and the front cover 1, the holes 33 are intended for the bolts by means of which the device is secured, bolts 15 are screwed into the holes 15 a. The external shape of the device can be round, elliptic . . . etc.; the device can be used wherever it is needed; for pumping the fluid, to achieve pressure and as a driving or driven hydraulic one; the device can be a part of any type of engine (generator) or a system; it can be directly driven by any type of motor; and it can be fitted or connected with engines (generators) by means of an indirect connection as it is with cardanshafts, electromagnetic lamells, pulleys and all other and thereto appropriate modes. Driving shafts in the device can have an outlet through the cover of the piston housing and through the both covers. Inlet-outlet connections 20 can be on the piston housing 11 or on the cover 1 of that housing or in a combined way; inlet on the piston housing 11 and the outlet on the cover 1 and vice versa. In the cases, of the device used for higher pressures it has to have channels fitted (recesses 25 according to the second embodiment from FIGS. 10-19) to unload i.e. for protection of the gaskets and bearings from the high-pressure fluid. Length (thickness) of the pistons and the length of the housing can be longer or smaller (proportionally). Sealing of the contact surfaces between the elements of the assembly can be achieved in any of known and thereto appropriate modes. This device can be with (working) protrusions of any of the mentioned shapes; A; B; C; D; E or F and according to which the choice of the shaped (auxiliary) recesses G or H, is made.

Device according to the invention, as represented in FIGS. 48 to 56, represents a device with a pair of gears and a pair of double-sided working-auxiliary pistons A-G (double sided working auxiliary rotary piston A-G consists from the body 6 together with the shaft, two (working) protrusions A and two auxiliary recesses G) and is best used as a turbine, a compressor, a pump a vacuum apparatus, a motor . . . consists of the piston housing 11 with inlet-outlet recesses 20 a, then the gear housing 9 achieved integrally as one part with the front cover 12, separating wall 7 and the rear cover 1 with inlet-outlet connections 20, connected to each other by bolts 16 that go through the appropriate holes 16 x and are screwed in the gear housing, in the piston housing 11 there is a pair of double-sided working-auxiliary rotary pistons A-G, firmly connected to the gears 10, in the gear housing 9, over the shafts 4 and 5, where the piston housing 11 and the gear housing 9 are separated from each other by the separating wall 7 whereon are holes for shafts 4 and 5 embedded in the bearings 2 in the front cover 1, bolts 16 a go through the appropriate holes 16 bx in the rear cover 1 and the piston housing 11 and are screwed in the body of the separating wall 7 wherein ring washers 3 support the gaskets 8 resting against the bearings 2, keys 29 are in the appropriate recessed parts on the shafts 4 and 5, the sealing rings 28 are in the recessed parts 28 a, auxiliary guides 22 are grooved into the appropriate holes on the elements and are used to direct precise alignment of these when connecting, bolts 15 close the outlets 15 x for oil, in the rear cover 12 there are threaded openings 33 intended for bolts that secure the device. The external shape of the device can be elliptic or have some other shape; device can be used wherever there is a need; to develop vacuum, for compression of compressive fluids, to pump the fluids, to achieve pressure and as a driving i.e. driven hydraulic and pneumatic machine; device can be a part of any type of engine (a generator) or a system; it can be directly driven by any type of motor; as well as it can be fitted therein or be connected with the engines (generators) by means of an indirect connection, such are cardanshafts, electromagnetic lamellas pulleys and in all other known and thereto appropriate modes. Driving shaft 4 on the device can have an outlet and through the cover 1 of the piston housing. Inlet-outlet connections 20 can be in the piston housing 11 or in the cover 1 of that housing as well as combined; inlet on the piston housing 11 and the outlet on the cover 1 and vice versa. In the cases when the application of the device demands higher pressures, it has to have fitted (channels 25 according to the second embodiment from FIGS. 10-19) to unload or disburden i.e. protect the gaskets and the bearings from high pressure fluid. If needed, length (thickness) of the pistons and the length of the housing can be proportionally increased or decreased. When, e.g. device is intended for use with higher pressures than its pistons and its housing would be shorter. Sealing of the contact surfaces between the elements of the assembly can be achieved to all known and thereto appropriate ways. This device can be with (working) protrusions of any of the mentioned shapes; A; B; C; D; E or F and depending on these the choice of (auxiliary) recessed shapes G or H is made.

Device according to the invention, as represented in FIGS. 57 to 65, is a device with a pair of gears and a pair of double-sided working-auxiliary rotary pistons A-G (double sided working rotary piston A-G consists of a body 6 with a hole for the shaft, two (working) protrusions A and two (auxiliary) recessed parts G) and is best used as a turbine, a compressor, a pump, a vacuum pump, a motor etc. it consists of the piston housing 11 with inlet-outlet connections 20, then the gear housing 9, the separating wall 7 and the front cover 12 achieved circularly with the semicircular protrusion, and the rear cover 1, that are connected by bolts 16 that go through the appropriate holes 16 x and are screwed in the body of the front cover 12, in the piston housing 11 there is set a pair of working auxiliary rotary pistons A-G, and these are firmly connected to the gears 10 in the gear housing 9, over the shafts 4 and 5, where the piston housing 11 and the gear housing 9 are each from other separated by the separating wall 7 whereon are holes for the shafts 4 and 5 which are embedded by the bearings 2 in the separating wall 7, the auxiliary guides 22 are grooved in the appropriate holes on the elements and are used to direct precise alignment of the elements when connecting, the gaskets 8 in the separating wall 7 and the front cover 12 prevent the fluid to flow from one housing into the other and outside the device, openings 33 on the assembly are for the bolts that fix the device, holes 15 with threads are used for filling oil and are closed by screwing the bolts therein. Device can be made even so that the piston housing 11 with the pistons A-G can be between the front cover 12 and the separating wall 7 and the piston housing 9 with gears between the wall in the centre and the rear cover 1, and in that case the gear housing 9 can be integrated as one part with the rear cover 1, and of a thin material (e.g. one of the options is by deep drawing the sheet metal). The external shape of the device can be round, elliptic or of different and therefore appropriate shapes. Device can be used wherever there is a need; to generate vacuum, to compress compressible fluids, for pumping the fluids, generate pressure and as a driving i.e. driven hydraulic pneumatic machine; device can be a part of any type of engine (generator) or system; it can be directly driven by any type of motor; as and it can be fitted therein or connected with the motors (engines) by means of an indirect connection such are cardanshafts, electromagnetic lamellas, pulleys and in all other appropriate modes. Driving shafts on the device can have outlet through the cover of the piston housing, and through the both covers. Inlet-outlet connections 20 can be on the piston housing 11 or on the rear cover 1 of that housing, it can be seen in FIGS. 92 to 100, according to the eleventh embodiment, and as combined where the inlet is in the housing and the outlet in the cover and vice versa. In the cases of using the device for higher pressures, it has to have made channels—recessed parts 25 (according to the second embodiment from FIGS. 10-19) to unload i.e. protect the gaskets and bearings from high-pressure fluids. The length (thickness) of the pistons and the length of the housing can be increased or decreased (proportionally). Sealing the contact or sealing surfaces between the elements of the assembly can be achieved in all existing and thereto suitable ways. This device can be with (working) protrusions of any of the mentioned shapes; A; B; C; D; E or F and according to these the choice of the (auxiliary) shaped recesses G or H, is made.

Device according to the invention, represented in FIGS. 66 to 73, represents a device with a pair of gears and two pairs of double-sided working auxiliary rotary pistons C-G (double-sided working auxiliary rotary piston C-G consists of a body 6 with a hole for the shaft, two (working) protrusions C and two (auxiliary) recessed parts G) and it can be best used as a turbine, a compressor, a pump, a vacuum pump, a motor . . . it consists of the piston housings 11 and 11 a with inlet-outlet connections 20, then the gear housing 9 of the separating wall 7, front cover 12 with a hole for shaft 4, and the rear cover 1, that are coupled by bolts 16 that go through the appropriate holes 16 x and are screwed in the body of the rear cover 1, then the bolts 16 a that go through the appropriate holes 16 y are screwed in the body of the separating wall 7, in the piston housings 11 and 11 a is set a pair of working-auxiliary rotary pistons C-G, and that firmly connected to the gears 10, in the gear housing 9 are over the shaft 5, where the piston housings 11 and 11 a and the gear housing 9 are separated by the separating wall 7 whereon are holes for shafts 5 embedded in the rear cover 1 and the front cover 12 by bearings 2, the shaft 4 carried by the gear 10 a is embedded in the separating wall 7 and the front cover 12, auxiliary guides 22 are grooved into the appropriate holes on the elements and are used to direct precise alignment when connecting these, the gaskets 8 in the separating wall 7 front cover 12 and the rear cover 1 prevent fluid to flow from one housing into the other and outside the device, and also prevent the contact of the working fluid and the bearings 2, bolts 15 close the holes 15 a in the rear cover 12 and the gear housing 9. The external shape of the piston housings can be; round, elliptic or of different and of thereto more suitable shapes. Device can be used wherever there is a need to generate a vacuum, to compress compressible fluids, to achieve pressure and as a driving i.e. driven hydraulic pneumatic machine; device can be a part of any type of engine (generator) or system; it can be directly driven by any type of motor; as it can be fitted therein or connected with the motors (generators) by means of an indirect connection and as such are: cardanshafts, electromagnetic lamellas, pulleys and in all other known and thereto appropriate modes. Inlet-outlet connections 20 can be in the piston housing or in the rear cover 1 of that housing or be combined where the inlet is in the housing and the outlet in the cover and vice versa. In the examples of using the device for higher pressures, it has to have channels 25 (according to the second embodiment, from FIGS. 10-19) to unload i.e. protect the gaskets and bearings from high-pressure fluids. Length (thickness) of the pistons and the length of the housings can be increased or decreased (proportionally). Sealing the leaning surfaces between the elements of the assembly can be achieved in all the known and thereto appropriate modes. This device can be with (working) protrusions of any of the mentioned shapes; A; B; C; D; E or F and depending on these the choice of the auxiliary shaped recesses G or H is made.

Device according to the invention represented in FIGS. 74 to 82, represents a device with a pair of gears, one double-sided working rotary piston A (that consists of a body 6 integrated as one part with the shaft 4 and two (working) protrusions A) and one double-sided auxiliary rotary piston G (that consists of the body 6 integrated as one part with the shaft 5 and two (auxiliary) recesses G) and it can be best used with inlet outlet recesses 20 a, the gear housing 9 achieved integrally as one part with the front cover 12, the separating wall 7 and the rear cover 1 with inlet-outlet connections 20, being coupled to each other by bolts 16 that go through the appropriate holes 16 x and are screwed in the gear housing 9, and in the piston housing 11 is set one double-sided working rotary piston A and one double-sided auxiliary rotary piston G that are firmly connected to the gears 10 in the gear housing 9 over the shafts 4 and 5, where the piston housing 11 and the gear housing 9 are separated by the separating wall 7 wherein are holes for shafts 4 and 5 embedded by bearings 2, on the front cover 12 and on the rear cover 1 are holes for the shafts 4, bolts 16 a go through the holes on the small covers 23 and are screwed into the body of the rear cover 1, and in the separating wall 7 ring washers 3 support the gaskets 8 leaning against the circlips 24, in the rear cover 1 ring washers 3 support the gaskets 8 resting against the bearings 2, keys 29 are in the recesses of the shafts 4 and 5, the sealing rings 28 are in the recesses 28 a in the housings 11 and 9, auxiliary guides 22 are grooved in the appropriate holes on the elements and are used to direct precise alignment when connecting, bolts 15 close the holes 15 a for oil in the front cover 12 whereon are also threaded openings for bolts that secure the device. The external shape of the device can be of different shapes, elliptic . . . etc. device can be used wherever needed, to generate vacuum, to compress compressible fluids, to generate pressure, it can be a part of any type of engine or system, it can be directly driven by any type of motor, and it can be fitted therein or be connected with the motors by means of an indirect connection in the modes such as cardanshafts, electromagnetic lamellas, pulleys and all other known and thereto appropriate ways. Inlet-outlet connections 20 can be in the piston housing 11 or in the cover 1 of that housing or combined; therewith inlet is in the piston housing 11 and the outlet is in the cover 1 and vice versa. In the cases of using this device for higher pressures it has to have channels made (channels 25 according to the second embodiment from FIGS. 10-19) to unload sealing elements and bearing from high-pressure fluids. As required length (thickness) of the pistons and the length of the housings can be proportionally increased or decreased. When, the device is e.g. in use for higher pressures then its pistons and their housings would be shorter. Sealing of the contact surfaces between the elements of the assembly can be achieved in all existing and thereto suitable ways. This device can be with (working) protrusions of any of the mentioned shape; A; B; C; D; E or F and according to which the choice of the (auxiliary) shaped recesses G or H, is made.

Device according to the invention, as represented in FIGS. 83 to 91, represents a device with a pair of gears and a pair of double-sided working-auxiliary rotary pistons A-G (double-sided working-auxiliary rotary piston A-G consists of the body 6 integrated as one part with the shaft 4, two (working) protrusions A and two (auxiliary) recesses G) and can be best used as a turbine, a compressor, a pump, a vacuum pump, a motor . . . , it consists of the piston housing 11 with inlet-outlet recesses 20 a, integrated as one part with the separating wall 7, then the gear housing 9 integrated as one part with the front cover 12 with a hole for shaft 4 and rear cover 1 with inlet-outlet connections 20, connected to each other by bolts 16 that go through the appropriate holes 16 x and are screwed in the body of piston housing 11 wherein set is one pair of working auxiliary rotary pistons A-G firmly connected to the gears 10 in the gear housing 9 over the shafts 4 and 5, in the separating wall 7 are holes for shafts 4 and 5 embedded in the rear cover 1 and the separating wall 7 by bearings 2, the gaskets 8 in the separating wall 7, the rear cover 1 and the front cover 12 prevent fluid to flow from one housing into the other and outside the device i.e. these protect from the contact between bearings and the working fluid, bolts 16 b go through the appropriate holes 16 c in the rear cover 1 and are screwed in the body of the piston housing 11, the bolts 16 a go through the appropriate holes 16 z in the gear housing 9 and are screwed in the body of the separating wall 7, the sealing ring 28 is in the recess 28 a on the piston housing 11, the keys 29 are in the appropriate recesses on the shafts 4 and 5, bolts 15 close the oil inlets in the gear housing 9, threaded openings 33 are for bolts that secure the device. Device can be used wherever it is required, to achieve vacuum, to compress compressible fluids, pump the fluids, to achieve the pressure and as a driving i.e. driven hydraulic and pneumatic machine, device can be a part of any type of engines (generators) or any systems, it can be directly driven by any type of motors it can be fitted therein or be connected with engine (generator) by means of an indirect connection in the modes such as, cardanshafts, electromagnetic lamellas, pulleys and in all other known and thereto appropriate modes. Device can be driven even manually (e.g. pumps for decanting wine, water, fuel and etc.). Driving shafts on the device can have outlet and through the cover 1 of the piston housing 11. Inlet-outlet connections 20 can be in the piston housing 11 or in the rear cover 1 of that housing and combined where the inlet is in the housing and the outlet is in the cover and vice versa. Length (thickness) of the pistons and the length of the housing can be increased or decreased (proportionally). Sealing the leaning surfaces between the elements of the assembly can be achieved in all known and thereto suitable ways. This device can be with (working) protrusions of any of the mentioned shapes; A; B; C; D; E or F and according to which the choice of the (auxiliary) shaped recesses G or H, is made.

Device according to the invention, as represented in FIGS. 92 to 100, represents the device with a pair of gears and a pair of double-sided working auxiliary rotary pistons F-H (double-sided working auxiliary rotary piston F-H consists of the body 6 countersunk from one and annularly reinforced from the other side, two (working) protrusions F shaped as a truncated semicylinder indented once per both sides and two (auxiliary) recesses H) and is best used as a turbine, a pump or a motor and for very high pressures and it consists of the piston housing 11 integrated as one part with the rear cover 1 an inlet-outlet connections 20, then the gear housing 9, the separating wall 7 and the front cover 12 achieved circullarly with an eccentric semicircular protrusion, connected to each other by bolts 16 that go through the appropriate holes 16 x and are screwed in the body of the front cover 12, in the piston housing 11 is set a pair of working-auxiliary rotary pistons F-H that are over the shafts 4 and 5 firmly connected with gears 10 set in the gear housing 9, where the piston housing 11 and the gear housing 9 are separated by the separating wall 7 whereon are holes for the shafts 4 and 5 embedded in the front cover 12 with a hole for the shaft 4 and the separating wall 7 by bearings 2, auxiliary guides 22 are grooved in the appropriate holes on the elements and are used to direct proper alignment when connecting these, the gaskets 8 in the separating wall 7 and the front cover 12 prevent fluid to flow from one housing to the other and outside the device, ring washer 3 is between the bearing 2 and the gasket 8 in the front cover 12, holes 33 on the assembly are intended for the bolts that secure the device, holes 15 with the threads are used for filling the oil and are closed by screwing the appropriate bolts therein. The external shape of the device can be round, elliptic or of some other and thereto adjusted shape. Device can be used wherever needed, to pump the fluid, to generate the pressure and as a driving i.e. driven hydraulic pneumatic machine; device can be a part of any type of engine (generator) or system; it can be directly driven by any type of motor and it can be fitted therein or be connected with motors (generators) by means of an indirect connection such are, cardanshafts, electromagnetic lamellas, pulleys and in all other existing and thereto appropriate modes. Length (thickness) of the pistons and the length of the housing can be increased or decreased (proportionally). Sealing the contact surfaces between the elements of the assembly can be achieved in all known and thereto appropriate ways. This device can be with (working) protrusions of any of the mentioned shapes; A; B; C; D; E or F and, depending on it the choice of the (auxiliary) shaped recesses G or H, is made.

Device according to the invention, as represented in FIGS. 101 to 107, represents a device with three gears, two double-sided working rotary pistons A (double-sided working rotary piston A consists of the body 6 countersunk from both sides, a hole for the shaft in the centre and two (working) protrusions A) and one double-sided auxiliary rotary piston G (double-side auxiliary rotary piston G consists of the body 6 with a hole in the centre and two auxiliary recessed parts G) and is best used as a compressor, a vacuum pump, the pump consists of the piston housing 11, then the gear housing 9, the separating wall 7, the front cover 12 and the rear cover 1 with inlet-outlet connections 20, connected to each other by bolts 16 that go through the appropriate holes and are screwed in the body of the rear cover 1, in the piston housing 11 are set two double-sided working rotary pistons A and one double-sided auxiliary rotary piston G that are firmly connected to the gears 10 in the gear housing 9 over the shafts 5 and 4, where the piston housings 11 and the gear housings 9 are each from other separated by the separating wall 7 whereon are holes for the shafts 4 and 5 embedded in the rear cover 1 and the front cover 12 by bearings 2, the gaskets 8 in the separating wall 7 and the front cover prevent the fluid to flow from one housing into the other and outside the device. The external shape of the device can be elliptic or of different thereto appropriate shapes. Device can be used wherever needed, to achieve vacuum, to compress compressible fluids or to pump the fluids; device can be a part of any type of the engine or system; it can be directly driven by any type of motor; and also it can be fitted therein or be connected with the motors by means of an indirect connection such are, cardanshafts, electromagnetic lamellas, pulleys and in all other known and thereto appropriate modes. Length (thickness) of the pistons and the length of the housing can be increased or decreased (proportionally). Sealing the resting surfaces between the elements of the assembly can be achieved in all existing and thereto appropriate modes. This device can be with (working) protrusions of any of the mentioned shapes; A; B; C; D; E or F and according to these the choice of the (auxiliary) shaped recesses G or H, is made.

Device according to the invention, as represented in FIGS. 108 to 115, represents a device with four gears, two double-sided working rotary pistons A (double-sided working rotary piston A consists of the body 6 countersunk from both sides and with a hole for the shaft in the middle and two (working) protrusions A), one double-sided auxiliary rotary piston G (double-sided auxiliary rotary piston G consists of the body 6 countersunk from both sides and with a hole in the centre, and two (auxiliary) recesses G) and can be best used as a vacuum pump, a compressor, a turbine, a motor, a pump or as a driving and driven hydraulic and pneumatic machine, it consists of the piston housing 11, then the gear housing 9, the separating wall 7, the front cover 12 with the hole for the shaft 4 and the rear cover 1 with the inlet-outlet connections 20, connected to each other by bolts 16 that go through the appropriate holes 16 x and are screwed in the body of the rear cover 1, in the piston housing 11 are set three double-sided working auxiliary rotary pistons A arranged from each other at the distance of 120 degrees while in the centre of the housing there is one double-sided auxiliary rotary piston G that are over the shafts 5 and 4 firmly connected to the gears 10 set in the gear housing 9, where the piston housings 11 and the gear housing 9 are separated by the separating wall 7 whereon are holes for the shafts 4 and 5 embedded in the rear cover 1 and the front cover 12 by bearings 2, the gaskets 8 in the separating wall 7 and the front cover prevent the fluid to flow from one housing into the other and outside the device, as well. The external shape of the device can be round or of different thereto appropriate shapes. Device can be used wherever there is a need to pump the fluid, to generate pressure or vacuum and as a driving i.e. driven hydraulic-pneumatic machine; device can be a part of any type of engine (generator) or system, it can be directly driven by any type of motor; as it can be fitted therein or be connected with the motors by means of an indirect connection, and such are cardanshafts, electromagnetic lamellas, pulleys and in all other known and thereto appropriate modes. Length (thickness) of the pistons and the length of the housing can be increased or decreased (proportionally). Sealing of the contact surfaces between the elements of the assembly can be achieved in all appropriate modes. This device can be with (working) protrusions, of any of the mentioned shapes; A; B; C; D; E or F and according to these shapes the choice of the (auxiliary) shaped recesses G or H, is made.

Device according to the invention, represented in the FIGS. 116 to 123, represents a five gear device, four double-sided working rotary pistons A (double sided working rotary piston A consists of a body 6 countersunk from both sides with a hole in the centre and two (working) protrusions A), one double-sided auxiliary rotary piston G (double-sided auxiliary rotary piston G consists of a body 6 countersunk from both sides with a hole for the shaft in the centre and two auxiliary piston recesses G) and can be best used as a vacuum pump, a compressor, a turbine, a motor, a pump and as either driving or driven hydraulic-pneumatic machine, it consists of the piston housing 11, the gear housing 9, the separating wall 7, front cover 12 with a hole for the shaft 4 and the rear cover 1 with inlet-outlet connections 20, each to other connected by bolts 16 that go through the appropriate holes 16 x and are screwed in the body of the rear cover 1, and in the piston housing 11 are set four double-sided working rotary pistons A arranged from each other at 90 DEG where in the centre of the device (housing) there is one double-sided auxiliary rotary piston G that are over the shafts 5 and 4 firmly connected to the gears 10 in the gear housing 9, where the piston housings 11 and the gear housing 9 are separated by the separating wall 7 whereon are holes for the shafts 4 and 5 embedded in the rear cover 1 and the front cover 12 by bearings 2, the gaskets 8 in the separating cover 7 and the front cover 12 prevent the fluid to flow from one housing into the other and outside the housing. The external shape of the device can be square, round or of different appropriate shape. Device can be used wherever there is a need for pumping fluid, creating pressure of vacuum and as a driving i.e. driven hydraulic-pneumatic machine; device can be a part of any type of engine (generator) or system, it can be directly driven by any type of motor; as well as it can be fitted therein or be connected with the motors (generators) by means of an indirect connection and such are cardanshafts, electromagnetic lamellas, pulleys and in all other known and thereto appropriate ways. Length (thickness) of the pistons and the length of the housings can be increased or decreased (proportionally). Sealing of the contact surfaces between the elements of the assembly can be achieved in all known and thereto appropriate modes. This device can be with working protrusions of any of the mentioned shapes; A; B; C; D; E or F and according to which the choice of (auxiliary) shaped recesses G or H, is made.

Device according to the invention, represented in FIGS. 124 to 128, represents a device with six gears 10 and one gear 10 a, six double-sided working rotary pistons A (double sided working rotary piston A consists of the body 6 with a hole in the centre and two (working) protrusions A) and one hexagonal auxiliary rotary piston G (hexagonal auxiliary rotary piston G consists of the body 6 which has a hole in the centre and six (auxiliary) shaped recesses G arranged each from other at the angles of 60 degrees) and can be best used as a vacuum pump, compressor, pump, consists of the piston housing 11, gear housing 9, separating wall 7 the front cover 12 with a hole for the shaft 4 and the rear cover 1 with inlet-outlet connections 20, connected to each other by bolts 16 that go through the appropriate holes and are screwed in the body of the rear housing 1, in the piston housing 11 are set six double-sided working rotary pistons A arranged each from other at 60 degrees while in the centre of the housing 11 there is one hexagonal auxiliary rotary piston G that are firmly connected to the gears 10 and 10 a in the gear housing 9 over the shafts 5 and 4, where the piston housings 11 and the gear housings 9 are separated from each other by the separating wall 7 whereon are holes for shafts 4 and 5 embedded in the rear cover 1 and the front cover 12 by bearings 2, the gaskets 8 in the separating wall 7 and in the front cover prevent fluid to flow from one housing into the other and outside the device, as well. The external shape of the device can be round or of different thereto appropriate shape. Device can be used wherever there is a need to pump the fluid, to achieve pressure or vacuum; device can be directly driven by any type of the motors it can be fitted therein or be connected with the motors by means of indirect connection and such are cardanshafts, electromagnetic lamellas, pulleys and in all other existing and thereto appropriate modes. Length (thickness) of the pistons and the length of the housing can be increased or decreased (proportionally). Sealing of the contact surfaces between the elements of the assembly can be done in all known and therefore appropriate modes. This device can have (working) protrusions, of any of the mentioned shapes; A; B; C; D; E or F and according to these the choice of the auxiliary shaped recesses G or H is made.

Device according to the invention, represented in FIGS. 129 to 137 represents a device with a pair of gears, one single-sided working rotary piston A (single-sided working rotary piston A consists of a body 6 with a hole for the shaft in the centre and one (working) protrusion A) and one single-sided auxiliary rotary piston G (single-sided auxiliary rotary piston G consists of the body 6 with a hole for the shaft in the centre and one (auxiliary) protrusion G) and is best used with internal combustion engines, it consists from the piston housing 11 with inlet-outlet connections 20, then the gear housing 9, the separating wall 7, the front cover 12 and the rear cover 1, that are each to other coupled by bolts 16 that go through the appropriate holes 16 x and are screwed in the body of the rear cover 1, and the piston housing 11 there is set one-sided working rotary piston A and one single-sided auxiliary rotary piston G that over the shafts 4 and 5 are firmly connected to the gears 10 in the gear housing 9, where the piston housing 11 and the gear housing 9 are separated by the separating wall 7 whereon are holes for the shafts 4 and 5 embedded in the front cover 12 and the rear cover 1 by bearings 2, the auxiliary guides 22 are grooved in the appropriate holes of the elements and are used to direct precise alignment when connecting these, the gaskets 8 in the separating wall 7 and the front cover 12 prevent the fluid to flow from one housing into the other and outside the device, bolts 15 close the inlets intended for filling the oil, bolts 18 with 17 are used to secure the device. The external shape of the device can be round, elliptic . . . etc. device can be used a part of a motor i.e. wherever there is a need to use it. Inlet-outlet connections 20 can be in the piston housing 11 or at the rear cover 1 of that housing or combined where the inlet is in the housing and outlet in the cover and vice versa. Length (thickness) of the pistons and the length of the housing can be increased or decreased (proportionally), all the single-sided pistons can be balanced in all the known and thereto appropriate modes, to prevent them to bring about vibrations in the working process. Sealing of the contact surfaces between the elements of the assembly can be achieved in all existing and thereto suitable modes. This device can be with working protrusions of any of the mentioned shapes; A; B; C; D; E or F and according to which the choice of the (auxiliary) shaped recesses G or H, is made. This type of the device can be used as a compressor, a pump, a vacuum apparatus, and therein can be, instead of one working and one auxiliary; double-sided working and double-sided auxiliary, or three-sided working and thee-sided auxiliary, or four-sided working and four-sided auxiliary rotary pistons. 

1. Device with rotary pistons that can be used as a compressor, a pump, a vacuum pump, a turbine, a motor and as other driving and driven hydraulic-pneumatic machines, consists of piston housings 11, 11 a with inlet-outlet connections 20, a gear housing 9, a separating wall 7, a front cover 12 with a hole for the shaft and a rear cover 1 which are connected to each other by bolts 16 that go through holes and are screwed in the body of the rear cover 1, is characterized in, that it consists of four gears (10) and one driving gear (10 a) firmly fixed on a shaft (4) embedded in a separating wall (7) and the front cover (12) by bearings (2), two pairs of double-sided working-auxiliary rotary pistons (C-G) set in the housings (11 and 11 a), that the double-sided working-auxiliary rotary piston (C-G) has a body (6) with a hole for a shaft (5), two working protrusions (C) on the tops indented once per each side and two auxiliary recesses (G), where the housings (11,11 a) of the pistons and the gear housing (9) are separated by the separating wall (7) whereon the holes for the shaft (5) are embedded in the rear cover (1) and the front cover (12) by bearings (2), auxiliary guides (22), that direct precise alignment of the elements when connecting, are grooved in appropriate holes on the elements, the gaskets (8) are in the separating wall (7), the front cover (12) and the rear cover (1), while the bolts (15) are screwed in the holes (15 a) on the front cover (12) and the gear housing (9). FIG. 66-73
 2. Device according to claim 1 and the eighth embodiment, is characterized in, that in the piston housing (11) is set one pair of double-sided working-auxiliary rotary pistons (A-G) which has the body (6) with two working protrusions (A) and two auxiliary recesses (G), each from other arranged in alteration at the angles of 90 DEG and through the shafts (4,5) firmly connected to the gears (10) in the gear housing (9). FIGS. 1-9
 3. Device according to claim 1 and the second and the third embodiment, is characterized in, that per one of the housings (11,11 a) is set one pair of double-sided working-auxiliary rotary pistons (E-G) of different lengths, firmly connected through the shafts (4,5) with gears (10) in the gear housing (9), where the gaskets (8) are set in the front cover (12), and the rear cover (1) and the separating walls (7,7 a), that the double-sided working auxiliary rotary pistons (E-G) have bodies (6) with two working semicylindrical protrusions (E) and two auxiliary semicylindrical recesses (G) arranged in alternation at the angles of 90 DEG, that the channels (25) are positioned in separating walls (7,7 a) and the rear cover (1) where the housing (9) for gears (10) is achieved in one part with the front cover (12), the housing (11) for pistons (E-G) in one part with the separating wall (7) and the housing (11 a) for pistons (E-G) in one part with the rear cover (1), whereby the housing (11) and the housing (11 a) are separated from each other by the separating wall (7 a), the shafts (4,5) are embedded in the bearings (2) in the separating wall (7) and the rear cover (1). FIG. 10-29
 4. Device according to claim 1 and the fourth embodiment, is characterized in, that its shape is cylindrical with a pair of gears (10) and a pair of double-sided working-auxiliary rotary pistons (A-G) which has bodies (6) achieved in one part with the shaft in the housing (11) and the body (6) with a hole for the shaft in the housing (11 a), that the piston housings (11, 11 a) are achieved with inlet outlet recesses (20 c, 20 a), rear covers (1,1 a) with inlet outlet connections (20) and small covers (23) that cover bearings (2), gear housing (9) is achieved in one part with separating wall (7), housings (11,11 a) connected to each other by bolts (16,16 b) to the body of the housing (11 a), bolts (15) are screwed in the holes (15 a), bolts (16 d) go through thereto matching holes (16 dx) on the cover (1) and the piston housing (11) and are screwed in the separating wall (7), bolts (16 c) go through thereto matching holes (16 cx) on the cover (1 a) and are screwed in the body of the housing (11 a), and the bolts (16 a) go through the holes (16 ax) on the small covers (23) and are screwed in the covers (1,1 a), while the ring washers (3) in the separating wall (7 a) support the gaskets (8) leaning therewith against the circlips (24), and the ring washers (3) in the covers (1, 1 a) support the gaskets (8), the sealing rings (28) are set in the recesses (28 a). FIG. 30-38
 5. Device according to claim 1 and the sixth embodiment, is characterized in, that its shape is cylindrical with a pair of gears (10) and a pair of double-sided working-auxiliary rotary pistons (A-G), that the device has piston housing (11) with inlet outlet recesses (20 a), gear housing (9) achieved in one part with the front cover (12), the separating wall (7) and the rear cover (1) with inlet-outlet connections (20), connected to each other by bolts (16) to the body of gear housing (9), bolts (16 a) go through the holes on the small covers (23) and are screwed in the rear cover (1), bolts (16 b) go through the holes (16 bx) on the rear cover (1) and the piston housing (11) and are screwed in the separating wall (7) wherein the ring washers (3) support the gaskets (8) rested on the circlips (24), in the rear cover (1) ring washers (3) rested on the the bearings (2) support the gaskets (8) and the keys (29) are in the recesses on the shafts (4,5), sealing rings (28) are set in the recesses (28 a). FIG. 48-56.
 6. Device according to claim 1 and the seventh embodiment has in the piston housing (11) set one pair of double-sided working-auxiliary rotary pistons (A-G) which are, through the shafts (4,5), firmly connected to the gears (10), where the piston housing (11) and the gear housing (9) are separated from each other by the separating wall (7) whereon are holes for the shafts (4,5) embedded by the bearings (2) in the separating wall (7), and in the front cover (12) achieved circularly with eccentric semi-circular protrusion and the separating wall (7) are gaskets (8), is characterized in, that the shafts (4,5) are embedded in the separating wall (7). FIG. 57-65
 7. Device according to claim 1 and the ninth embodiment, is characterized in, that it is with one double-sided working rotary piston (A) which has the body (6) achieved in one part with the shaft (4) and one double-sided auxiliary rotary piston (G) which has the body (6) achieved in one part with the shaft (5) being firmly connected to the pair of gears (10), where the piston housing (11) with inlet outlet recesses (20 a), gear housing (9) is achieved in one part with the front cover (12) with the hole for the shaft (4) to go through, the separating wall (7) and the rear cover (1), with the holes for the shafts (4,5) embedded in the front cover (12) and the rear cover (1) by bearings (2), on the front cover (12) and the rear cover (1) are holes for the shaft (4), bolts (16 a) go through the holes on the small covers (23) and are screwed in the rear cover (1), in the separating wall (7) ring washers (3) support the gaskets (8) leaned against the circlips (24), in the rear cover (1) the ring washers (3) support the gaskets (8) rested therewith on the bearings (2), keys (29) are in the recesses on the shafts (4,5) and the sealing rings (28) are set in the recesses (28 a) on the housings (11,9), while the auxiliary guides (22) that direct precise alignment of the elements when connecting, while the bolts (15) are screwed into the holes (15 a) on the front cover (12) wherein are threaded openings (33). FIG. 74-82
 8. Device according to claim 1 and the tenth embodiment, with the pair of gears (10) and the pair of double-sided working-auxiliary rotary pistons (A-G), double-sided working-auxiliary rotary piston (A-G) has the body (6) achieved in one part with the shaft (4), two working protrusions (A) and two auxiliary recesses (G), is characterized in, that the piston housing (11) with inlet outlet recesses (20 a) is achieved in one part with the separating wall (7), shafts (4,5) embedded in the rear cover (1) and the separating wall (7) by bearings (2), the gaskets (8) are in the separating wall (7), the rear cover (1) and the front cover (12) with a hole for the shaft (4), bolts (16 b) go through the holes or openings (16 c) on the rear cover (1) and are screwed in the body of the housing (11), bolts (16 a) go through the holes (16 z) on the housing (9) and are screwed in the separating wall (7), the sealing ring (28) is set in the recess (28 a) on the housing (11). FIG. 83-91
 9. Device according to claim 1 and the eleventh embodiment, is characterized in, that with the pair of double-sided working-auxiliary rotary pistons (F-H) which has the body (6) countersunk from one and annularly reinforced from the other side, two working protrusions (F) of a truncated semicircle indented once per each side and two auxiliary recesses (H), the piston housing (11) achieved in one part with the rear cover (1) and inlet-outlet connections (20), then the gear housing (9), the separating wall (7) and the front cover (12) achieved circularly with a hole for the shaft (4) and a semicircular protrusion on one side, the shafts (4,5) embedded in the front cover (12) and the separating wall (7) by the bearings (2), the auxiliary guides (22) that direct precise alignment of the elements of the device and the gaskets (8) are in the separating wall (7) and the front cover (12), the ring washer (3) is set between the bearings (2) and the sealing element (8) in the front cover (12). FIG. 92-100
 10. Device according to claim 1 and the twelfth embodiment, is characterized in, that it has two double-sided working rotary pistons (A) that has the body (6) countersunk from both sides, with a central hole for shafts (5), one double-sided auxiliary rotary piston (G), through the shafts (5,4), firmly connected to the gears (10), whereby the piston housing (11) and the gear housing (9) are separated from each other by the separating wall (7) with the holes for the shafts (4,5) embedded by the bearings (2) in the rear cover (1) with inlet-outlet connections (20) and the front cover (12), while the gaskets (8) are in the separating wall (7) and the front cover (12) with a hole for the shaft (4). FIG. 101-107
 11. Device according to claim 1 and the thirteenth embodiment, is characterized in, that it has three double-sided working rotary pistons (A), one double-sided auxiliary rotary piston (G), that are in the piston housing (11) set three doubles-sided working rotary pistons (A) and one double-sided auxiliary rotary piston (G) that are through the shafts (5,4) firmly connected to four gears (10). FIG. 108-115
 12. Device according to claim 1 and the fourteenth embodiment, is characterized in, that it has four double-sided working rotary pistons (A) and one double-sided auxiliary rotary piston (G) that are through the shafts (5,4) firmly connected to five gears (10). FIG. 116-123
 13. Device according to claim 1 and the fifteenth embodiment, is characterized in, that it has six double-sided working rotary pistons (A) one hexagonal auxiliary rotary piston (G) in the centre, that are through the shafts (5,4) firmly connected to six gears (10) and one gear (10 a). FIG. 124-128
 14. Device according to claim 1 and the sixteenth embodiment, is characterized in, that a pair has one single-sided working rotary piston (A) and one single-sided auxiliary rotary piston (G) that are through the shafts (5,4) firmly connected to the gears (10). FIG. 129-137
 15. According to claim 1 and the second embodiment, is characterized in, that there are recesses (25) on the separating walls (7,7 a) and the rear cover (1). FIG. 10-19
 16. Device according to claims 2, 4, 5, 6, 8, is characterized in, that the body (6) has two working protrusions (A) and two auxiliary recesses (G).
 17. Device according to claim 1, is characterized in, that the body (6) has two working protrusions (C) i two auxiliary recesses (G).
 18. Device according to claim 9, is characterized in, that the body (6) has two working protrusions (F) and two auxiliary recesses (H).
 19. Device according to claims 7, 10, 11, 12, is characterized in, that the body (6) has two working protrusions (A).
 20. Device according to claims 7, 10, 11, 12, is characterized in, that the body (6) has two auxiliary recesses (G).
 21. Device according to claim 14, is characterized in, that the body (6) has one working protrusion (A).
 22. Device according to claim 14, is characterized in, that the body (6) has one auxiliary recess (G).
 23. Device according to claim 3, is characterized in, that the body (6) has two working protrusions (E) indented four times per each side and two auxiliary recesses (G). FIG. 10-29
 24. Device according to claim 1 and the eighth embodiment, is characterized in, that the body (6) has two working protrusions (A) and two auxiliary recesses (G). FIG. 66-73
 25. Device according to claim 1 and the eighth embodiment, is characterized in, that the body (6) has two working protrusions (B) and two auxiliary recesses (G).
 26. Device according to claim 1 and the eighth embodiment, is characterized in, that the body (6) has two working protrusions (E) and two auxiliary recesses (G).
 27. Device according to claim 1 and the eighth embodiment, is characterized in, that the body (6) has two working protrusions (F) and two auxiliary recesses (H).
 28. Device according to claim 1 and the first embodiment, is characterized in, that the body (6) has two working protrusions (B) and two auxiliary recesses (G). FIG. 1-9
 29. Device according to claim 1 and the first embodiment, is characterized in, that the body (6) has two working protrusions (C) and two auxiliary recesses (G).
 30. Device according to claim 1 and the first embodiment, is characterized in, that the body (6) has two working protrusions (E) and two auxiliary recesses (G).
 31. Device according to claim 1 and the first embodiment, is characterized in, that the body (6) has two working protrusions (F) and two auxiliary recesses (H).
 32. Device according to claim 1 and the first embodiment, is characterized in, that one body (6) has two working protrusions (A) and the other body (6) has two auxiliary recesses (G).
 33. Device according to claim 1 and the first embodiment, is characterized in, that one body (6) has two auxiliary protrusions (B) and the other body (6) has two auxiliary recesses (G).
 34. Device according to claim 1 and the first embodiment, is characterized in, that one body (6) has two working protrusions (C) and the other body (6) has two auxiliary recesses (G).
 35. Device according to claim 1 and the first embodiment, is characterized in, that one body (6) has two working protrusions (E) and the other body (6) has two auxiliary recesses (G).
 36. Device according to claim 1 and the first embodiment, is characterized in, that one body (6) has two working protrusions (F) and the other body (6) has two auxiliary recesses (H).
 37. Device according to claim 1 and the first embodiment, is characterized in, that one body (6) has one working protrusion (A) and the other body (6) has one auxiliary recess (G).
 38. Device according to claim 1 and the first embodiment, is characterized in, that one body (6) has one working protrusion (B) and the other body (6) has one auxiliary recess (G).
 39. Device according to claim 1 and the first embodiment, is characterized in, that one body (6) has one working protrusion (C) and the other body (6) has one auxiliary recess (G).
 40. Device according to claim 1 and the first embodiment, is characterized in, that one body (6) has one working protrusion (E) and the other body (6) has one auxiliary recess (G).
 41. Device according to claim 1 and the first embodiment, is characterized in, that one body (6) has one working protrusion (F) and the other body (6) has one auxiliary recess (H). 